Portable computer



FIG. 1 is a top front perspective view of a portable computer showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines are for environmental purposes only and form no part of the claimed design. The dense stipple shading represents the claimed surfaces of the design, and does not represent surface ornamentation. 

CLAIM The ornamental design for a portable computer, as shown and described. 